Digital content control based on shared machine learning properties

ABSTRACT

Application personalization techniques and systems are described that leverage an embedded machine learning module to preserve a user&#39;s privacy while still supporting rich personalization with improved accuracy and efficiency of use of computational resources over conventional techniques and systems. The machine learning module, for instance, may be embedded as part of an application to execute within a context of the application to learn user preferences to train a model using machine learning. This model is then used within the context of execution of the application to personalize the application, such as control access to digital content, make recommendations, control which items of digital marketing content are exposed to a user via the application, and so on.

BACKGROUND

Personalization is used in a variety of different digital medium scenarios. A service provider system, for instance, may be configured to provide digital content to a user, such as digital audio, digital video, digital media, and so on to a user based on the user's past experience regarding consumption of digital content. Likewise, a digital marketing system may be configured to provide digital marketing content to a user based on identification of a segment of a population, to which, the user belongs. In this way, the user is provided with personalized digital content that has an increased likelihood of being of interest to the user, such as to recommend items of digital content, provide digital marketing content that has an increased likelihood of resulting in conversion, and so on.

However, knowledge of the user is required by the service provider system in each of these scenarios to support personalization, which may run counter to a user's privacy concerns. As a result, conventional personalization techniques and systems involve a balancing of interests in obtaining information about the user and the user's desire to keep personal information private. Consequently, conventional personalization techniques may be computationally inefficient and result in inaccuracies due to limitations in knowledge permitted by a user for access by these systems in order to support personalization.

SUMMARY

Digital content control techniques and systems are described that leverage shared machine learning properties that preserve a user's privacy while still supporting rich personalization with improved accuracy and efficiency of use of computational resources over conventional techniques and systems. In one example, a machine learning module is embedded as part of an application. The machine learning module is configured to train a client model using machine learning based on monitored user interaction as part of the application, e.g., as interacting with particular items of digital content.

Data that describes machine learning properties of the client model, once trained, is then shared by a client device with a service provider system. The machine learning properties, for instance, may describe input weights, functions, connections, learning rules, propagation functions and so on as learned through training of nodes of a neural network of the client model. Thus, the machine learning properties describe the client model, itself, as trained. The service provider system then employs this data to generate a service model that, in effect, is trained based on the data to mimic the client model of the client device.

The service model is then employed by the service provider system to support personalization, such as control provision of digital content to the client device, make recommendations, provide digital marketing content, and so forth. In this way, the service provider system may support personalization through use of the data received from the client device without being aware of how that data was achieved, i.e., what data (e.g., monitored user interactions) was used to train the model or identify a user that was a source of this interaction. This acts to preserve the user's privacy while still supporting personalization, which is not possible in conventional techniques and systems.

This Summary introduces a selection of concepts in a simplified form that are further described below in the Detailed Description. As such, this Summary is not intended to identify essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

BRIEF DESCRIPTION OF THE DRAWINGS

The detailed description is described with reference to the accompanying figures. Entities represented in the figures may be indicative of one or more entities and thus reference may be made interchangeably to single or plural forms of the entities in the discussion.

FIG. 1 depicts an example digital medium environment operable to perform embedded machine learning module and application digital content control techniques.

FIG. 2 depicts a system in an example implementation in which a software development kit is obtained having functionality to embed a machine learning module as part of an application.

FIG. 3 is a flow diagram depicting a procedure in an example implementation in which a software development kit is obtained having functionality to embed a machine learning module as part of an application.

FIG. 4 depicts a system in an example implementation in which a model, embedded as part of a machine learning module within an application as described in relation to FIGS. 2 and 3 , is trained within a context of execution of the application by a client device.

FIG. 5 depicts a system in an example implementation in which a model is employed within execution of the application to control digital content access through machine learning.

FIG. 6 is a flow diagram depicting a procedure in an example implementation in which a model embedded as part of an application is trained within a context of execution of the application and used to generate a recommendation to control output of an item of digital content.

FIG. 7 depicts a system in an example implementation in which machine learning properties generated through training of a client model are used to generate a service model to control personalization by a service provider system.

FIG. 8 is a flow diagram depicting a procedure in an example implementation in which monitored user interaction within a context of an application is used to train a client model, the machine learning properties of which are shared to support personalization and maintain privacy.

FIG. 9 illustrates an example system including various components of an example device that can be implemented as any type of computing device as described and/or utilize with reference to FIGS. 1-8 to implement embodiments of the techniques described herein.

DETAILED DESCRIPTION

Overview

Techniques and systems are described in which a machine learning module is embedded as part of an application and used to control personalization of user interaction with the application. Further, these techniques and systems are implemented in a manner that preserves the user's privacy, which is not possible in conventional techniques.

In one example, a software development kit is obtained that includes a collection of software development tools usable to generate an application. The software development kit, for instance, may include a UI module configured to output a user interface as a visual editor via which user inputs are received to write source code, an API module configured to interact and select from a library of APIs, a debugging module to fix errors in the source code, a compiler, sample source code and graphics, documentation detailing how to use the software development tools, and so on. The software development tools also include a machine learning module that is configured to train a model using machine learning. A user coding the application, for instance, may select the machine learning module based on a variety of types of machine learning to achieve a desired result, such as to perform classification (e.g., classify user interactions such as interaction with desired and undesired user interface elements), regression, clustering, density estimation, dimensionality reduction, and so forth.

The machine learning module, as embedded as part of the application (e.g., as part of source code), is configured to train a model based on user interaction with the application. This model is then employed by the application to support personalization of user interaction with the application, and further, may do so while maintaining a user's privacy. This may be implemented in a variety of ways.

The machine learning module, for instance, is embedded as part of the application to personalize access to digital content locally as part of execution of the application. This personalized access is based on monitored user interaction with the application that is used to train the model within the application. Machine learning properties that describe a client model as trained by the client device are exposed “outside” of the application (e.g., and client device) to control personalization of user interaction with the application. The machine learning properties describe the configuration of the client model once trained, e.g., input weights, functions, connections, learning rules, propagation functions and so on that are transformed as part of the training of the model.

In one example, the machine learning properties are employed by a third-party system “outside” of execution of the application to form a service model that mimics the client model. In this way, the service model is configured as a trained model that duplicates the client model as trained by the client device. Further, generation of the service model may be performed without knowledge of the training data used nor a user that originated the user interaction. As a result, the sharing of the machine learning properties supports rich personalization of user interaction with the application without exposing user information outside of the application. This acts to preserve a user's privacy in ways that are not possible using conventional techniques that rely on access to this information by third parties. The following discussion begins with generation of an application to include a machine learning module through use of a software development kit. An example is then described in which the machine learning module supports localized control of personalization with respect to FIGS. 2-6 . Another examples follows in which machine learning properties are shared, which is described in a corresponding section in the following and in relation to FIGS. 7-8 .

In the following discussion, an example environment is first described that may employ the techniques described herein. Example procedures are then described which may be performed in the example environment as well as other environments. Consequently, performance of the example procedures is not limited to the example environment and the example environment is not limited to performance of the example procedures.

Example Environment

FIG. 1 is an illustration of a digital medium environment 100 in an example implementation that is operable to employ techniques described herein. The illustrated environment 100 includes a digital marketing system 102, a client device 104, and a service provider system 106 that are communicatively coupled, one to another, via a network 108, e.g., the Internet. Computing devices that implement the digital marketing system 102, client device 104, and service provider system 106 may be configured in a variety of ways.

A computing device, for instance, may be configured as a desktop computer, a laptop computer, a mobile device (e.g., assuming a handheld configuration such as a tablet or mobile phone), and so forth. Thus, a computing device may range from full resource devices with substantial memory and processor resources (e.g., personal computers, game consoles) to a low-resource device with limited memory and/or processing resources (e.g., mobile devices). Additionally, a computing device may be representative of a plurality of different devices, such as multiple servers utilized by a business to perform operations “over the cloud” as described in FIG. 9 and as illustrated for the digital marketing system 102 and the service provider system 106.

The digital marketing system 102 includes a marketing manager module 110 that is implemented at least partially in hardware of a computing device, e.g., processing system and computer-readable storage medium as described in relation to FIG. 9 . The marketing manager module 110 is configured to control output of digital marketing content 112 via the network 108 to the client device 104, and is illustrated as stored in a storage device 114. Digital marketing content 112 may be configured in a variety of ways, such as banner ads, digital video, digital images, digital audio, and so forth. The digital marketing content 112, for instance, may be configured for output in conjunction with digital content, such as a webpage, digital video, and so forth in order to cause conversion, e.g., selection of a link, purchase of a good or service, and so on.

The digital marketing system 102 also includes an application creation module 116. The application creation module 116 is representative of functionality to aid in application creation, i.e., coding. An example of this functionality is illustrated as a software development kit (SDK) 118. The software development kit 118 includes a set of tools that is usable by the service provider system 106 to create an application 120. The service provider system 106, for instance, may interact with the software development kit 118 remotely via the network 108 or locally through use of a service manager module 122. Through interaction with the software development kit 118, the service provider system 106 may specify APIs for inclusion as part of the application 120, perform debugging, and so on as further described in relation to FIG. 2 .

As part of the software tools, the software development kit 118 includes a machine learning module 124 that is configured to train and use a model 126 as part of machine learning within a context of execution of the application 120, e.g., by the client device 104. The software development kit 118, for instance, may be configured to support a variety of different types of machine learning models 126, such as to perform supervised, unsupervised, or reinforcement learning, decision tree learning, deep learning, neural networks, support vector machines (SVMs), Bayesian networks, representation learning, and so forth. The service provider system 106 may then select from these options to cause the machine learning module 124 to be embedded as part of the code of the application 120 for execution along with the application 120, i.e., in the context of the application 120.

Once embedded, the application 120 is provided to the client device 104 to employ machine learning to personalize user interaction with the application 120, such as to control output of digital content as part of execution of the application 120. The application 120, for instance, may be obtained directly from the service provider system 106 and/or digital marketing system 102, indirectly through use of an online application store system, and so forth. Upon execution of the application 120 by the client device 104, the machine learning module 124 may train the model 126 based on monitored user interactions, e.g., user interaction with digital marketing content 112 that caused conversion, items of digital content (e.g., digital music, digital videos) output or purchased, functionality of the application 120 itself (e.g., user interface elements, commands), and so on.

The model 126, once trained, may be used to support personalization in a variety of ways yet still address privacy concerns in a computationally efficient manner In one such example, the machine learning module 124 and trained model 126 is preserved within a context of execution of the application 120 such that the model 126 is used to directly control interaction with digital content. In a digital marketing scenario, for instance, the machine learning module 124 and associated model 126 may be trained based on user interaction with particular items of digital marketing content 112 and whether that user interaction resulted in conversion. Based on this trained model 126, the machine learning module 124 controls which items of digital marketing content 112 are to be output within a context of execution of the application 120, e.g., within a user interface of the application 120, in order to increase a likelihood of conversion by selecting items of digital marketing content 112 that are likely of interest to the user.

Thus, the machine learning module 124, as part of the application 120, may monitor which items of digital marketing content 112 are of interest to a user, train the model 126 according, and then make subsequent requests for digital marketing content 112 based on the model 126. In this way, the machine learning module 124 and model 126 provide local control and corresponding personalization without exposing how or why requests for particular items of digital marketing content 112 are made by the module to the digital marketing system 102. This acts to improve accuracy of the requests through increased access to user interactions and thus also improve efficiency in consumption of computational resources of the client device 104 due to this accuracy. Further discussion of this example is described in relation to FIGS. 2-6 in the following sections.

In another example, machine learning properties learned through training of the model 126 are shared and used to control output of digital content. Like the previous example, the machine learning module 124 is executed within a context of the application 120, and trains the model 126 based on user interaction with the application 120. The user interaction, for instance, may involve interaction and conversion caused by particular items of digital marketing content 112, selection of digital content for consumption (e.g., digital movies, digital images), and so forth. Thus, data that describes this user interaction acts as training data for use by the machine learning module 124 to train the model 126.

The model 126, once trained, thus has a variety of machine learning properties that are defined as part of this training, e.g., weights, functions, connections (e.g., between respective nodes of a neural network), learning rules, propagation functions, and so on. Thus, the machine learning properties describe the model 126, itself, but do not describe how the model 126 was trained (e.g., the training data used) nor to whom the model 126 is associated with, i.e., the user that performs the user interactions that are used to train the model 126. Thus, sharing of the machine learning properties by the application 120 (e.g., with the digital marketing system 102 and/or service provider system 106) may increase accuracy of selection of digital content by these systems without exposing private information of a user. In this way, a user of the client device 104 is able to experience accurate personalization of digital content without exposing private information, which is not possible using conventional techniques. Further discussion of this example is described in relation to FIGS. 7-8 in the following sections.

In general, functionality, features, and concepts described in relation to the examples above and below may be employed in the context of the example procedures described in this section. Further, functionality, features, and concepts described in relation to different figures and examples in this document may be interchanged among one another and are not limited to implementation in the context of a particular figure or procedure. Moreover, blocks associated with different representative procedures and corresponding figures herein may be applied together and/or combined in different ways. Thus, individual functionality, features, and concepts described in relation to different example environments, devices, components, figures, and procedures herein may be used in any suitable combinations and are not limited to the particular combinations represented by the enumerated examples in this description.

Application Embedding of Machine Learning Module from a SDK

In this example, the machine learning module 124 is embedded as part of the application 120 to personalize access to digital content locally as part of execution of the application 120. This personalized access is based on monitored user interaction with the application 120 that is used to train the model 126 within the application 120. As a result, the model 126 supports personalization of user interaction with the application 120 and without exposing user information outside of the application 120, thereby preserving a user's privacy in ways that are not possible using conventional techniques that rely on access to this information by third parties.

FIG. 2 depicts a system 200 and FIG. 3 depicts a procedure 300 in an example implementation in which a software development kit is obtained having functionality to embed a machine learning module 124 as part of an application 120. FIG. 4 depicts a system 400 in an example implementation in which a model 126, embedded as part of a machine learning module 124 within an application 120, is trained within a context of execution of the application 120 by a client device 104. FIG. 5 depicts a system 500 in an example implementation in which the model 126 is employed within execution of the application 120 to control digital content access. FIG. 6 depicts a procedure 600 in an example implementation in which a model 126 embedded as part of an application 120 is trained within a context of execution of the application and used to generate a recommendation to control output of an item of digital content.

The following discussion describes techniques that may be implemented utilizing the previously described systems and devices. Aspects of each of the procedures may be implemented in hardware, firmware, software, or a combination thereof. The procedures are shown as a set of blocks that specify operations performed by one or more devices and are not necessarily limited to the orders shown for performing the operations by the respective blocks. In portions of the following discussion, reference will be made to FIGS. 1-6 .

To begin, an application 120 is generated based on user interaction with a software development kit (SDK) (block 302). As shown in the example system 200 of FIG. 2 , the service provider system 106 receives the software development kit 118 from the digital marketing system 102, e.g., via the network 108. Other examples of service provider systems are also contemplated that do not involve digital marketing, such as digital content streaming service systems. The software development kit 118 includes a variety of software development tools 202 that are executed by a computing device to create an application 120.

The software development kit 118, for example, is configured to generate an integrated development environment, with which, a user or users of the service provider system 106 interact (e.g., via a computing device) to create the application 120. To do so, the software development kit 118 includes a variety of software development tools 202. Examples of these tools 202 include a UI module 204 configured to output a user interface as a visual editor via which user inputs are received to write source code, an API module 206 configured to interact and select from a library of APIs (e.g., for interaction with the digital marketing system 102), a debugging module 208 to fix errors in the source code, a compiler 210, sample source code 212 and graphics, documentation 214 detailing how to use the software development tools 202, and so on. In this way, a user may cause the service provider system 106 to generate the application 120 to address functionality that may be particular to a provider of the SDK 118, e.g., hardware or software platform implemented by the digital marketing system 102. In this example, the provider of the SDK 118 is the digital marketing system 102, although other service provider systems are also contemplated including digital content distribution systems (e.g., digital audio, digital video), recommendation systems, and any other system that employ an application 120 for distribution to client devices 104.

The software development kit 118 in this example also includes software development tools 202 to cause a machine learning module 124, and associated model 126, to be embedded as part of the application 120. A user input, for instance, may be received via interaction with the software development kit 118 to select the machine learning module 124 included as part of the software development kit (block 304) from a plurality of options of machine learning modules 124. Each of the machine learning modules 124, for instance, may correspond to a type of machine learning functionality and thus may be selected based on a type of functionality that is desired for inclusion as part of the application 120. A user may then interact with a user interface generated by the UI module 204 of the SDK 118 to select a machine learning module 124 having desired functionality to be embedded as part of source code of the application 120.

The machine learning modules 124, for instance, may be selected for predictive analysis, to compute a probability that a user interaction with the application 120 via a respective client device 104 will result in performance of an action, e.g., conversion with respect to digital marketing content 112, selection of an item of digital content (e.g., a recommendation for a particular digital book movie, audio), and so forth. This may be used to perform classification (e.g., classify user interactions such as interaction with desired and undesired user interface elements), regression, clustering, density estimation, dimensionality reduction, and so forth. This may be performed using a variety of machine learning techniques and models 126 as previously described, such as to perform supervised, unsupervised, or reinforcement learning, decision tree learning, deep learning (e.g., more than one hidden layer), neural networks, support vector machines (SVMs), Bayesian networks, representation learning, and so forth.

The selected machine learning module 124 from the software development kit 118 is embedded as part of the application 120, e.g., included as part of the executable code (i.e., source code) of the application 120. Once embedded, the machine learning module 124 is configured to train the model 126 using machine learning based on user interaction within a context of the application 120 when executed (block 306). The application 120 is then output as having the embedded machine learning module 124 (block 308), e.g., for use by the client device 104. Further discussion of training and use of the model 126 by the machine learning module 124 is further described below.

Reference is now made to a system 400 of FIG. 4 in which the model 126 of the embedded machine learning module 124 of the application 120 is trained. The machine learning module 124 is this example is configured to monitor user interaction within a context of the application 120 as executed by the client device 104 (block 602). A model 126 is trained using machine learning that is embedded as part of the application 120 using machine learning (block 604) to train the model 126 to address a variety of considerations based on data generated from the monitored interaction. This may involve a variety of user interactions with the application 120.

In one example, the application 120 is configured to receive digital marketing content 112 from the digital marketing system 102. The digital marketing content 112, for instance, may include banner ads, digital videos, digital audio, and so on that is configured to cause conversion of a corresponding good or service. Accordingly, user interaction with the digital marketing content 112 via a user interface of the application 120, and whether such interaction caused conversion, is used to train the model 126 in this example. From this, the model 126 may be used to identify other items of digital marketing content 112 that are likely to cause conversion as further described below. Thus, this user interaction is performed within the context of execution of the application 120.

In another example, the application 120 is configured to receive other types of digital content 402 from a service provider system 106. This digital content 402, for instance, may be configured as digital audio (e.g., songs, recited books), digital books, digital images (e.g., stock images from a stock image provider system), digital videos (e.g., a service provider system 106 as a digital streaming service system for movies, television episodes, gifs), and so forth. Accordingly, in this other example the machine learning module 124 is configured to train the model 126 based on items of digital content 402 obtained and/or interacted with using the application 120. From this, the model 126 may be used to identify other items of digital content as further described below, e.g., to generate a recommendation.

In a further example, the model 126 is trained by the machine learning module 124 based on user interaction with application functionality 404 of the application 120, itself. Application functionality 404, for instance, may include user interface elements 406 (e.g., drop down menus), application commands 408 that are usable to initiate operations of the application 120 (e.g., key combinations, spoken utterances, gestures), application functions 410 of the application 120 (e.g., use of particular image filters, search tools), and so forth. Based on this, the model 126 is trained to generate recommendations for configuration of this application functionality 404, e.g., inclusion of particular user interface elements 406, prompt of application commands and functions 408, 410, and so on as further described as follows.

FIG. 5 depicts a system 500 in an example implementation in which a trained model 126 of a machine learning module 124 embedded as part of the application 120 is used to control digital content output within a context of the application 120. In this example, the model 126 is trained by the machine learning module 126 based on monitored user interaction with particular items of digital content, e.g., digital marketing content, digital audio, digital video, and so forth. Training data used to train the model 126, for instance, may describe actions taken by a user with respect to the digital content as well as describe the digital content itself, e.g., through metadata associated with the digital content. Accordingly, the model 126, one trained, is usable to infer likely user preferences of a user that is a source of this user interaction and thus use these inferred preferences to personalize user interaction with the application 120.

The application 120, for instance, may receive data via a network 108 from the service provider system 106. The data describes a plurality of items of digital content 402 that are available to the client device 104 (block 606). The data, for instance may describe digital content characteristics, such as the metadata associated with the digital content as described above for digital content available for streaming, digital marketing content, and so forth.

A recommendation 502 is then generated by processing the data using machine learning based on the embedded trained model 126 (block 608) of the machine learning module 124. The recommendation 502, for instance, may describe digital marketing content 112 that is likely to cause conversion or other types of digital content 504, digital images 506 (e.g., stock images), digital videos 508 and digital audio 510 (e.g., from a streaming service system or available for local download), or other types of digital media 512. In this way, the machine learning module 124 employs the model 126 locally at the client device 104 without exposing the model 126 or information regarding how the model 126 is trained, thereby preserving the user's privacy while yet still supporting rich personalization in a computationally efficient manner over conventional techniques.

In the illustrated example, the recommendation 502 is transmitted for receipt by the service provider system 106 via the network 108 (block 610), e.g., without identifying how the model 126 is trained or even identifying a user associated with the model. The service provider system 106 then uses the recommendation 502 to select digital content 504 from a plurality of items of digital content 402 to be provided back to the client device 104. The recommendation 502, for instance, may identify particular characteristics of digital content 504 that is likely to be of interest, e.g., genres, products or services in a digital marketing scenario, and so forth. In another instance, the recommendation 502 identifies the particular items of digital content 504 itself based on the previously processed data.

In response to transmission of the recommendation 502, the client device 104 receives at least one of a plurality of items of digital content 504 via the network 108 from the service provider system 106 (block 612). The received at least one item of digital content is output within the context of the application by the client device (block 614), e.g., as digital marketing content in conjunction with other digital content output by the application 120, items of digital content 504 for consumption such as digital images 506, digital video 508, digital audio 510, digital media 512, and so forth. In this way, the machine learning module 124 and trained model 126 may act as a localized agent executed within the context of the application 120 to personalize user interaction.

Continuing with the previous examples, the application 120 may be configured to support output of digital marketing content 112. Therefore, the machine learning module 124 may monitor user interaction with previous items of digital marketing content as training data to train the model 126. Once trained, the model 126 may generate recommendations 502 identifying other items of digital marketing content 112 that are likely to be of interest to the user. In this way, the determination of which items of digital marketing content 112 is made within the context of the application without exposing this information outside of the application 120. This acts to improve accuracy and computational efficiency in obtaining a desired result, while still protecting the user's privacy as neither the training data used to train to model 126 nor even identification of the user, itself, is used to make this determination.

In this example, the content control is implemented locally by the client device 104 itself. Techniques and systems may also be implemented to leverage the machine learning module 124 and trained model 126 for decisions made by third parties while still protecting a user's privacy and achieving rich personalization, an example of which is described in the following section.

Machine Learning Properties and Digital Content Control

In the following discussion, the machine learning module 124 is also embedded as part of the application 120 to personalize access to digital content locally as part of execution of the application 120. This personalized access is based on monitored user interaction with the application 120 that is used to train the model 126 within the application 120. However, in this example machine learning properties that describe a client model as trained by the client device 104 are exposed “outside” of the application 120 (e.g., and client device 104) to control personalization of user interaction with the application 120. The machine learning properties describe the configuration of the client model based on the training data, e.g., input weights, functions, connections, learning rules, propagation functions and so on that are transformed as part of the training of the model.

The machine learning properties are then employed by a service provider system “outside” of execution of the application 120 and client device 104 to form a service model by the service provider system. In this way, the service model is configured as a trained model that mimics the client model trained by the client device. Further, generation of the service model may be performed within knowledge of the training data used nor a user that originated the user interaction. As a result, the model 126 supports rich personalization of user interaction with the application 120 without exposing user information outside of the application 120, thereby preserving a user's privacy in ways that are not possible using conventional techniques that rely on access to this information by third parties.

FIG. 7 depicts a system 700 in an example implementation in which machine learning properties generated through training of a client model are used to generate a service model to control personalization, such as for digital content access. FIG. 8 depicts a procedure 800 in an example implementation in which monitored user interaction within a context of an application is used to train a client model, the machine learning properties of which are shared to support personalization and maintain privacy.

This example begins like the previous example in which the machine learning module 124 is embedded as part of an application 120, e.g., through use of the software development kit 118 of FIG. 2 . The application 120 is then output for execution by a client device 104.

User interaction is monitored within a context of the application (block 802) and used to train a client model 702 embedded as part of the application using machine learning (block 804). The client model 702, for instance, may be configured as an artificial neural network having a plurality of nodes configured in layers, e.g., as input nodes, output nodes, and hidden nodes disposed between the input and output nodes. During training, training data describing the user interaction with the application 120 is processed using machine learning to learn input weights 708 for connections between the nodes in the network, e.g., to identify patterns in the data. The input weights 708 define an amount of influence one node has on another node in the neural network. Backpropagation is used to adjust the input weights 708 and thus learn such that accuracy of the client model 702 improves over time as the client model 702 is exposed to ever increasing amounts of training data.

In this example, the client model 702 is trained based on monitored user interaction with the application 120. In a digital marketing scenario, for instance, the client model 702 may be trained to learn which items of digital marketing content are successful in causing conversion based on monitored user interaction used as training data that describes previous user interaction with other items of digital marketing content. In other digital content scenarios, the client model 702 may be trained to learn which times of digital movies, digital audio (e.g., digital music), digital media, and so on is desired by a user. In an application 120 interaction scenario, the client model 702 may learn which user interface elements (e.g., representations in a menu), commands, gestures, and so on are used. Thus, the client model 702 may be trained to learn a variety of user interactions performed within a context of the application 120.

Thus, the training of the client model 702 by the machine learning module 124 results in the generation of machine learning properties 706 that describe how the client model 702 is implemented, e.g., input weights 708 for connections between nodes as described above. This may also include functions 710, connections 712, learning rules 714, and propagation functions 716 used to implement the client model 702. Thus, data 702 that includes the machine learning properties 706 describes the client model 702, as trained, but does not describe how the client model 702 is trained. In other words, the machine learning properties 706 do not identify the training data used, which is the user interactions in this example, nor identify the user that is a source of the interactions.

Accordingly, the data 704 that describes the machine learning properties 706 of the trained client model 702 is communicated by the client device 104 for receipt by a service provider system 106 via the network 108 (block 806), which may be representative of a digital marketing system 104, digital content service provider (e.g., streaming or download service system), and so forth. The service provider system also includes a machine learning module 718 that is configured to generate a service model 720 based on the obtained data 704 that describes the client model 702 (block 808). The machine learning module 718, for instance, may configure the nodes of the service model 720 to have the input weights 708, functions 710, connections 712, learning rules, propagation functions 716, type (e.g., deep learning convolutional neural network, SVM, decision tree), and so forth such that the service model 720 mimics (e.g., duplicates) the client model 702. Again, this is performed without knowing which training data was used to train the client model 702 and thus preserves user privacy yet still supports personalization.

In the illustrated example, the service model 720 is used to select an item of digital content 504 for output to the client device (block 810) and thus control output of the select item of digital content (block 812). The client device 104, for instance, may receive the item of digital content selected by the service provider system (block 814) and output that item within a context of the application 120 as executed by the client device 104 (block 816). The item of digital content 504, for instance, may include digital marketing content 112, digital images 506 (e.g., stock images), digital video or audio 508, 510 (e.g., for download or streaming), or other types of digital media 512. This data 704 may also be aggregated by the service provider system 106 from a plurality of client devices 104, such as to select items of digital content 504, form recommendations, and so on to gain insight on a variety of different users for personalization, e.g., based on geographical location and so forth. In this way, the sharing of data 704 describing machine learning properties 706 supports rich personalization of user interaction with the application 120 while still preserving user privacy.

Example System and Device

FIG. 9 illustrates an example system generally at 900 that includes an example computing device 902 that is representative of one or more computing systems and/or devices that may implement the various techniques described herein. This is illustrated through inclusion of the application 120 having the embedded machine learning module 124 and model 126. The computing device 902 may be, for example, a server of a service provider, a device associated with a client (e.g., a client device), an on-chip system, and/or any other suitable computing device or computing system.

The example computing device 902 as illustrated includes a processing system 904, one or more computer-readable media 906, and one or more I/O interface 908 that are communicatively coupled, one to another. Although not shown, the computing device 902 may further include a system bus or other data and command transfer system that couples the various components, one to another. A system bus can include any one or combination of different bus structures, such as a memory bus or memory controller, a peripheral bus, a universal serial bus, and/or a processor or local bus that utilizes any of a variety of bus architectures. A variety of other examples are also contemplated, such as control and data lines.

The processing system 904 is representative of functionality to perform one or more operations using hardware. Accordingly, the processing system 904 is illustrated as including hardware element 910 that may be configured as processors, functional blocks, and so forth. This may include implementation in hardware as an application specific integrated circuit or other logic device formed using one or more semiconductors. The hardware elements 910 are not limited by the materials from which they are formed or the processing mechanisms employed therein. For example, processors may be comprised of semiconductor(s) and/or transistors (e.g., electronic integrated circuits (ICs)). In such a context, processor-executable instructions may be electronically-executable instructions.

The computer-readable storage media 906 is illustrated as including memory/storage 912. The memory/storage 912 represents memory/storage capacity associated with one or more computer-readable media. The memory/storage component 912 may include volatile media (such as random access memory (RAM)) and/or nonvolatile media (such as read only memory (ROM), Flash memory, optical disks, magnetic disks, and so forth). The memory/storage component 912 may include fixed media (e.g., RAM, ROM, a fixed hard drive, and so on) as well as removable media (e.g., Flash memory, a removable hard drive, an optical disc, and so forth). The computer-readable media 906 may be configured in a variety of other ways as further described below.

Input/output interface(s) 908 are representative of functionality to allow a user to enter commands and information to computing device 902, and also allow information to be presented to the user and/or other components or devices using various input/output devices. Examples of input devices include a keyboard, a cursor control device (e.g., a mouse), a microphone, a scanner, touch functionality (e.g., capacitive or other sensors that are configured to detect physical touch), a camera (e.g., which may employ visible or non-visible wavelengths such as infrared frequencies to recognize movement as gestures that do not involve touch), and so forth. Examples of output devices include a display device (e.g., a monitor or projector), speakers, a printer, a network card, tactile-response device, and so forth. Thus, the computing device 902 may be configured in a variety of ways as further described below to support user interaction.

Various techniques may be described herein in the general context of software, hardware elements, or program modules. Generally, such modules include routines, programs, objects, elements, components, data structures, and so forth that perform particular tasks or implement particular abstract data types. The terms “module,” “functionality,” and “component” as used herein generally represent software, firmware, hardware, or a combination thereof. The features of the techniques described herein are platform-independent, meaning that the techniques may be implemented on a variety of commercial computing platforms having a variety of processors.

An implementation of the described modules and techniques may be stored on or transmitted across some form of computer-readable media. The computer-readable media may include a variety of media that may be accessed by the computing device 902. By way of example, and not limitation, computer-readable media may include “computer-readable storage media” and “computer-readable signal media.”

“Computer-readable storage media” may refer to media and/or devices that enable persistent and/or non-transitory storage of information in contrast to mere signal transmission, carrier waves, or signals per se. Thus, computer-readable storage media refers to non-signal bearing media. The computer-readable storage media includes hardware such as volatile and non-volatile, removable and non-removable media and/or storage devices implemented in a method or technology suitable for storage of information such as computer readable instructions, data structures, program modules, logic elements/circuits, or other data. Examples of computer-readable storage media may include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical storage, hard disks, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or other storage device, tangible media, or article of manufacture suitable to store the desired information and which may be accessed by a computer.

“Computer-readable signal media” may refer to a signal-bearing medium that is configured to transmit instructions to the hardware of the computing device 902, such as via a network. Signal media typically may embody computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as carrier waves, data signals, or other transport mechanism. Signal media also include any information delivery media. The term “modulated data signal” means a signal that has one or more of its characteristics set or changed in such a manner as to encode information in the signal. By way of example, and not limitation, communication media include wired media such as a wired network or direct-wired connection, and wireless media such as acoustic, RF, infrared, and other wireless media.

As previously described, hardware elements 910 and computer-readable media 906 are representative of modules, programmable device logic and/or fixed device logic implemented in a hardware form that may be employed in some embodiments to implement at least some aspects of the techniques described herein, such as to perform one or more instructions. Hardware may include components of an integrated circuit or on-chip system, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), a complex programmable logic device (CPLD), and other implementations in silicon or other hardware. In this context, hardware may operate as a processing device that performs program tasks defined by instructions and/or logic embodied by the hardware as well as a hardware utilized to store instructions for execution, e.g., the computer-readable storage media described previously.

Combinations of the foregoing may also be employed to implement various techniques described herein. Accordingly, software, hardware, or executable modules may be implemented as one or more instructions and/or logic embodied on some form of computer-readable storage media and/or by one or more hardware elements 910. The computing device 902 may be configured to implement particular instructions and/or functions corresponding to the software and/or hardware modules. Accordingly, implementation of a module that is executable by the computing device 902 as software may be achieved at least partially in hardware, e.g., through use of computer-readable storage media and/or hardware elements 910 of the processing system 904. The instructions and/or functions may be executable/operable by one or more articles of manufacture (for example, one or more computing devices 902 and/or processing systems 904) to implement techniques, modules, and examples described herein.

The techniques described herein may be supported by various configurations of the computing device 902 and are not limited to the specific examples of the techniques described herein. This functionality may also be implemented all or in part through use of a distributed system, such as over a “cloud” 914 via a platform 916 as described below.

The cloud 914 includes and/or is representative of a platform 916 for resources 918. The platform 916 abstracts underlying functionality of hardware (e.g., servers) and software resources of the cloud 914. The resources 918 may include applications and/or data that can be utilized while computer processing is executed on servers that are remote from the computing device 902. Resources 918 can also include services provided over the Internet and/or through a subscriber network, such as a cellular or Wi-Fi network.

The platform 916 may abstract resources and functions to connect the computing device 902 with other computing devices. The platform 916 may also serve to abstract scaling of resources to provide a corresponding level of scale to encountered demand for the resources 918 that are implemented via the platform 916. Accordingly, in an interconnected device embodiment, implementation of functionality described herein may be distributed throughout the system 900. For example, the functionality may be implemented in part on the computing device 902 as well as via the platform 916 that abstracts the functionality of the cloud 914.

CONCLUSION

Although the invention has been described in language specific to structural features and/or methodological acts, it is to be understood that the invention defined in the appended claims is not necessarily limited to the specific features or acts described. Rather, the specific features and acts are disclosed as example forms of implementing the claimed invention. 

What is claimed is:
 1. A method implemented by at least one computing device, the method comprising: receiving, by the at least one computing device via a network from a client device, a configuration of a client model that is learned as part of training the client model using machine learning with training data, the training data describing monitored user interaction involving personal user information, and the configuration of the client model received by the at least one computing device excluding the personal user information of the training data; configuring, by the at least one computing device, a service model to perform machine learning that mimics the client model by setting a configuration of the service model based on the received configuration of the client model that excludes the personal user information of the monitored user interaction of the training data; selecting, by the at least one computing device, an item of digital content for output to the client device based on the service model; and controlling, by the at least one computing device, output of the selected item of digital content to the client device.
 2. The method as described in claim 1, wherein the received configuration of the client model includes an input weight, function, connection, learning rule, or propagation function employed respective nodes of a neural network that form the client model as part of the machine learning.
 3. The method as described in claim 1, wherein the received configuration of the client model does not describe how the client model is trained.
 4. The method as described in claim 1, wherein the selecting is performed by the at least one computing device independent of knowledge regarding how the client model is trained.
 5. The method as described in claim 1, wherein the monitored user interaction involves user interaction with previous items of digital content that is used to train the client model.
 6. The method as described in claim 1, wherein the configuration does not include data that was used to train the client model.
 7. The method as described in claim 1, wherein the received configuration of the client model does not identify a user corresponding to the monitored user interaction used to train the client model.
 8. The method as described in claim 1, wherein the monitored user interaction involves user interaction with a plurality of items of digital content including digital marketing content, digital images, digital video, digital audio, or digital media.
 9. The method as described in claim 1, wherein the receiving includes receiving a plurality of said configurations for a plurality of said client models and the configuring of the service model includes aggregating the plurality of said configurations.
 10. The method as described in claim 1, wherein the client device withholds personal user information used to train the client model from the at least one computing device.
 11. The method as described in claim 1, further comprising: determining probabilities of user interaction corresponding to a plurality of digital content based on the service model; and selecting the digital content based on the probabilities of user interaction corresponding to the plurality of digital content.
 12. The method as described in claim 1, wherein the selecting comprises personalizing the selected item of digital content based on the service model without access to the training data.
 13. A method implemented by a client device, the method comprising: monitoring, by the client device, user interaction involving personal user information within the context of the application as executed by the client device; training, by the client device, a client model embedded as part of the application using machine learning with training data, the training data describing the monitored user interaction involving the personal user information, the training including: configuring the client model to have a plurality of layers, each layer configured to have one or more nodes; and determining weights for connections between nodes of the client model based on the training data; transmitting, by the client device, a configuration of the trained client model for receipt by a service provider system via a network, the configuration describing the plurality of layers, the one or more nodes of each layer, and the weights for the connections between the nodes and excluding the personal user information of the monitored user interaction described by the training data; receiving, by the client device, an item of digital content selected by the service provider system based on the transmitted configuration of the trained client model; and outputting, by the client device, the received item of digital content within the context of execution of the application by the client device.
 14. The method as described in claim 13, wherein the transmitted configuration of the trained client model further includes an input weight, function, learning rule, or propagation function employed respective nodes of a neural network that form the client model as part of the machine learning.
 15. The method as described in claim 13, wherein the monitored user interaction involves user interaction with previous items of digital content to train the client model.
 16. The method as described in claim 13, wherein the transmitted configuration of the client model does not identify a user corresponding to the user interaction used to train the client model included as part of the personal user information of the training data.
 17. A system comprising: means for obtaining a learned result of training a client model using machine learning, the learned result describing machine learning properties of the client model including weights of the client model, the training of the client model based on training data including monitored interaction involving personal user information of a user with an application on a client device; means for generating a service model to perform machine learning that mimics the client model by configuring machine learning properties of the service model including weights of the service model based on the machine learning properties of the client model including the weights of the client model described by the learned result; means for personalizing an item of digital content for output to the client device for the user based on the service model without access to the personal user information involved in the monitored interaction of the user described by the training data; and means for controlling output of the personalized item of digital content to the client device.
 18. The system as described in claim 17, wherein the machine learning properties further include a function, connection, learning rule, or propagation function employed respective nodes of a neural network that form the client model as part of the machine learning.
 19. The system as described in claim 17, wherein the monitored interaction of the user involves interaction with previous items of digital content by the user to train the client model.
 20. The system as described in claim 17, wherein the machine learning properties of the service model are not configured using the training data. 